Introduction
xxv
Icons Used in This Book
Router
Gateway
Hub
Access server
ATM
switch
Bridge
DSU/CSU
ISDN switch
Communication
server
Catalyst
switch
Multilayer switch
PC
PC with
software
Sun
Workstation
Mac
Terminal
File server
Web
server
CiscoWorks
Workstation
Printer
Laptop
IBM
mainframe
Front End
Processor
Cluster Controller/
3274 or 3174